How to Train a Rescue Dog with a Difficult Past

how to train a rescue dog

Bringing home a rescue dog with a rough history is one of the kindest things you can do—and sometimes one of the trickiest. As a trainer, I approach these dogs with three priorities: safety, predictability, and choice. Give the dog time to decompress, set up a simple routine, and teach tiny, winnable skills. Progress may be slower than with a puppy from a stable background, but the bond you earn is second to none.


Quick list: common issues you might encounter

how to train rescue dog
  • Fearfulness around people, dogs, or new places
  • Lead pulling or reactivity (barking/lunging) on walks
  • Separation anxiety and distress when left alone
  • House-training setbacks or marking
  • Resource guarding (food, toys, bed)
  • Excessive barking or whining
  • Poor recall/bolting; escape attempts
  • Handling sensitivity (touching paws, harness, grooming)
  • Crate aversion or pacing/restlessness indoors
  • Noise sensitivity (fireworks, traffic, household sounds)
  • Car anxiety or travel sickness
  • Mouthiness or jumpy greetings
  • Lack of confidence and trouble settling

Below you’ll find separate “How to fix it” sections for each problem. Use them like a menu—start with the ones you’re seeing now and revisit as your dog relaxes.


Before you train: the 3–3–3 rule (decompression)

  • First 3 days: keep things quiet. Short toileting walks only, no visitors, simple meals, long naps.
  • First 3 weeks: build a predictable routine—same wake, walk, feed, train, and rest times.
  • First 3 months: layer in new environments and skills gradually; track wins in a notebook.

Set up: comfy bed in a calm corner, baby gates if needed, chew options, water, a well-fitting Y-front harness, and a 5–10 m long line for safety outdoors.


Fearfulness around people/dogs/places

scared rescue dog

Goal: change the dog’s emotional response from “uh-oh” to “that means treats and space.”

How to fix it:

  • Distance first. Work far enough away that your dog can notice the trigger and still eat.
  • Pair every sighting with predictable food (chicken/cheese) delivered after they look—this is classical counter-conditioning.
  • Play the Look-At-That (LAT) game: trigger appears → mark “yes” → treat when your dog turns back to you.
  • Keep sessions 3–5 minutes and end before stress climbs. Increase difficulty by reducing distance a little over days/weeks.
  • Avoid forced greetings. Choice builds trust.

Lead reactivity (barking/lunging)

Goal: clean, rehearsable patterns that replace big emotions.

How to fix it:

  • Fit a front-clip harness and practise pattern games (1-2-3 Treat, U-turn on cue, hand target) at home first.
  • Outside, spot triggers early; step off the path and run your pattern. Reward every check-in.
  • Choose walking routes with space; morning/evening when it’s quiet.
  • Track your “threshold distance” and improve it gradually.

Separation anxiety / distress alone

Goal: make absences boring and safe.

How to fix it:

  • Start with absence rehearsals that are so short the dog stays calm (seconds). Return, drop a treat on a mat, carry on.
  • Increase in tiny steps: seconds → minutes → slightly longer errands. If your dog vocalises, you went too fast—dial back.
  • Use predictable pre-departure routines (jacket on, kettle off, treat on mat) that don’t spike anxiety.
  • Enrich the environment: snuffle mats, stuffed Kongs, gentle background noise.
  • Serious cases benefit from a remote camera and a trainer-led protocol; speak to a qualified behaviourist for tailored support.

House-training setbacks

Goal: rebuild clean indoor habits without drama.

How to fix it:

  • Go back to basics: outside after waking, after meals, after play, and every 2–3 hours.
  • Praise and treat during toileting outside.
  • Supervise indoors or use a crate/pen for short stints after proper exercise.
  • Enzymatically clean accidents; never punish.

Resource guarding (food/toys/bed)

Goal: teach “humans near my stuff = good news.”

How to fix it:

  • Stop all “trade wars.” Instead, add value: as the dog eats, walk by and toss a high-value treat, then leave.
  • Practise scatter-and-swap: show a second treat, scatter it away from the item, pick the item up while the dog is eating, then return it occasionally.
  • Teach a cheerful, paid “Drop” cue using boring items first.
  • Manage: feed behind a gate; don’t reach for prized chews until you’ve trained trust.

Excessive barking

Goal: meet the need; teach a quiet alternative.

How to fix it:

  • Identify the function: alerting, boredom, frustration, fear, demand.
  • Increase enrichment (sniff walks, food puzzles) and teach settle on a mat with paid calm.
  • For alert barking, step to the window, say “Thank you,” drop a handful of treats behind you so the dog turns away, then draw the curtains.
  • If barking is intense/repetitive and not resolved by training, consider a humane anti-bark strategy with a professional plan (e.g., citronella spray collars used sparingly alongside behaviour work). Prioritise welfare and guidance from a qualified trainer.

Poor recall / bolting

Goal: “come” predicts fantastic pay and safety every time.

How to fix it:

  • Start on a long line in boring areas; say your recall cue once, then pay big (jackpot) for any turn-and-run to you.
  • Play the “chase me” game—call, then jog backwards as your dog races in.
  • Reward with food and a quick release back to sniff/play so recall doesn’t always end the fun.
  • As your dog improves, proof in harder places.
  • For dogs that can’t hear you or get locked on at distance, a no-shock vibrating collar can act as a gentle tactile cue when taught positively (pair the vibration with treats first). See Calmshops’ Vibrating Dog Training Collar for a humane option.

Handling/grooming sensitivity

Goal: cooperative care.

How to fix it:

  • Introduce a consent cue (e.g., dog places chin on a towel). Handling only continues while the dog maintains contact.
  • Use start-button behaviours: “paw on hand” to request paw handling, “chin rest” for ear checks.
  • Pair each touch with a small treat, stop before the dog withdraws, and build duration slowly.

Crate aversion / can’t settle

Goal: create a predictable rest ritual.

How to fix it:

  • Feed meals in the crate with the door open for a week. Then close the door briefly while the dog licks a stuffed Kong; open before they finish.
  • Teach Go to Mat: toss a treat onto the bed, mark when paws land, feed calmness. Add a release cue.
  • Cap hyper arousal with sniff breaks and decompression walks rather than endless fetch.

Noise sensitivity (fireworks/traffic)

scue dog is shaking

Goal: safety and gradual desensitisation.

How to fix it:

  • Create a safe room: blackout curtains, white noise, chews.
  • Play very low-volume recordings while the dog eats/plays; increase volume a notch only when fully relaxed.
  • During real events, skip training—focus on comfort and management.

Car anxiety

Goal: make the car predict food and fun.

How to fix it:

  • Start with engine off: hop in → lick mat → hop out. Repeat.
  • Add engine on (stationary), then very short drives to great destinations (quiet fields, sniff spots).
  • Use a stable crate or seat-belt harness; many dogs relax with a calming chew 30 minutes before travel (e.g., Calmdogs® Calming Treats)—always check ingredients and your vet if unsure.

Jumpy greetings & mouthiness

Goal: teach incompatible behaviours that you love.

How to fix it:

  • Remove the audience for jumping—stand on the lead or step away. Reward four paws on the floor or a sit with calm petting.
  • Provide legal chew outlets; swap for a toy if mouthiness starts.
  • Ask visitors to toss treats on the floor as they enter to keep heads down and brains engaged.

Confidence building you can start today

  • Scatter feeding & snuffle games to reduce tension.
  • Shaping tiny wins (touch a target, step on a mat, hop on a low platform).
  • Predictable micro-sessions: 2–3 minutes, 3–5 times a day.
  • Choice: offer two beds, two chew types, and two safe routes on walks when possible.

A simple 30-day plan

Week 1: decompression, routine, name response, hand target, Go to Mat, long-line safety.
Week 2: LAT game for triggers; recall games; introduce visitors at distance.
Week 3: short alone-time rehearsals; handling consent; calm doorways.
Week 4: proof recall in new places; add “leave it/drop”; extend alone time; first easy café visit if your dog is ready.


Tools that help (used humanely)


When to call a professional

  • Bites or near-bites, serious resource guarding, severe separation anxiety, or cases where fear escalates despite careful training. Your vet can rule out pain; a certified behaviourist can design a tailored plan.

Final thought

Progress with a rescue dog isn’t a straight line. Celebrate small improvements, keep sessions short, and protect your dog’s sense of safety. With kindness and structure, even a dog with a difficult past can become the most reliable partner you’ve ever had.

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